Do I Need a Permit to Replace My Roof?
Short answer
Almost always for a full replacement. Most jurisdictions require a permit for reroofing, especially tear-offs. Small repairs (a bundle or two of shingles) are typically exempt.
Usually exempt (no building permit)
- Minor repairs — commonly under 100 sq ft or one square of roofing, varies locally
Permit required
- Full replacement, tear-off or overlay (many codes limit roofs to two layers total)
- Sheathing replacement or structural repairs
- Changing roofing material class (e.g., shingles to tile — weight matters)
What trips people up
- Ice-barrier underlayment is required in cold regions — depends on your climate zone
- High-wind areas have specific nailing and underlayment schedules
- Insurance claims often require the permit record
- Unpermitted reroofs surface at appraisal and sale
How to apply
Reroof permits are usually over-the-counter or online with a simple scope description. Roofing contractors pull them routinely — confirm yours did before work starts.
Check your jurisdiction: exemption thresholds are from the 2021 IRC (R105.2) as adopted by most states — your city or county may amend them. Find your local building department, adopted codes, and online permit portal on the BuildSpec permit pages.